Ethyl 4-(difluoromethyl)-2-methoxy-6-nitropyridine-3-acetate
Ethyl 6-(chloromethyl)-4-(difluoromethyl)-2-methoxypyridine-3-acetate
4-(Difluoromethyl)-3-methyl-2-nitropyridine-5-acetic acid
Ethyl 6-(chloromethyl)-4-(difluoromethyl)-3-methoxypyridine-2-acetate